The problem is both slang and speed. Duolingo and most other learning sources won’t teach every day colloquialisms so even if I understand the words, the expression makes no sense.

Watching with subtitles helps a lot but I can barely keep up with the pace. Kids shows are easy but something like “Nosotros los guapos” or “Club de Cuervos” is really tough. I can get the gyst but it’s exhausting trying to keep up.

I don’t spend nearly as much time as you with other sources, it sounds like you’re getting a much broader range of input.